<script lang="ts">
  import { Listbox, createListCollection } from "@ark-ui/svelte/listbox";
  import { Check } from "lucide-svelte";

  const collection = createListCollection({
    items: [
      { label: "React", value: "react", category: "Frontend Frameworks" },
      { label: "Vue", value: "vue", category: "Frontend Frameworks" },
      { label: "Angular", value: "angular", category: "Frontend Frameworks" },
      { label: "Svelte", value: "svelte", category: "Frontend Frameworks" },
      { label: "Node.js", value: "nodejs", category: "Backend" },
      { label: "Express", value: "express", category: "Backend" },
      { label: "FastAPI", value: "fastapi", category: "Backend" },
      { label: "Django", value: "django", category: "Backend" },
      { label: "PostgreSQL", value: "postgresql", category: "Databases" },
      { label: "MongoDB", value: "mongodb", category: "Databases" },
      { label: "Redis", value: "redis", category: "Databases" },
      { label: "MySQL", value: "mysql", category: "Databases" },
    ],
    groupBy: (item) => item.category,
  });
</script>

<div class="flex items-center justify-center min-h-32">
  <Listbox.Root
    {collection}
    class="[--listbox-bg:#ffffff] dark:[--listbox-bg:#111827] [--listbox-border:#e5e7eb] dark:[--listbox-border:#374151]"
  >
    <Listbox.Label
      class="text-sm font-medium text-gray-700 dark:text-gray-300 mb-2 block"
    >
      Select technologies
    </Listbox.Label>
    <Listbox.Content
      class="bg-(--listbox-bg) border border-(--listbox-border) rounded-lg px-1 py-2 w-72 shadow-lg max-h-80 overflow-y-auto"
    >
      {#each collection().group() as [category, items] (category)}
        <Listbox.ItemGroup>
          <Listbox.ItemGroupLabel
            class="px-3 py-2 text-xs font-semibold text-gray-500 dark:text-gray-400 uppercase tracking-wider"
          >
            {category}
          </Listbox.ItemGroupLabel>
          {#each items as item (item.value)}
            <Listbox.Item
              {item}
              class="flex items-center justify-between px-3 py-2 mx-1 rounded-md cursor-pointer text-sm font-medium text-gray-700 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-800 data-highlighted:bg-gray-100 dark:data-highlighted:bg-gray-800 data-selected:bg-blue-50 dark:data-selected:bg-blue-900/20 data-selected:text-blue-700 dark:data-selected:text-blue-300 transition-colors ml-4"
            >
              <Listbox.ItemText>{item.label}</Listbox.ItemText>
              <Listbox.ItemIndicator>
                <Check class="w-4 h-4 text-blue-600 dark:text-blue-400" />
              </Listbox.ItemIndicator>
            </Listbox.Item>
          {/each}
        </Listbox.ItemGroup>
      {/each}
    </Listbox.Content>
  </Listbox.Root>
</div>
